香港恆生指數6月18日（週四）收盤下跌387.35點，跌幅1.59%，報23924.81點； 香港恆生科技指數6月18日（週四）收盤下跌64.72點，跌幅1.39%，報4604.35點； 國企指數6月18日（週四）收盤下跌167.99點，跌幅2.06%，報7976.04點； 紅籌指數6月18日（週四）收盤下跌162.24點，跌幅3.89%，報4009.59點。

According to Axios, President Trump on Wednesday announced and signed an Iran agreement Israeli officials call a strategic and political disaster. Prime Minister Netanyahu — who had vowed Israelis a "comprehensive victory" over Iran — has remained publicly silent, accepted Trump's memorandum of understanding and continued presidential criticism with Israel's election four months away. Netanyahu says the deal is wrong and advocates continuing the war against Iran, but is largely internationally isolated; even the previously hardline UAE has shifted to support the pact. In Washington, Republican and media allies are reluctant to repudiate a Trump‑endorsed agreement, making a repeat of Netanyahu's 2015 congressional gambit unlikely. Israeli officials are airing strong concerns only in background briefings, and outlets once firmly pro‑Netanyahu/pro‑Trump have begun criticizing Trump and his team.

Hong Kong stocks closed lower: Hang Seng fell 1.59%, Hang Seng TECH fell 1.39%. CAOCAO (02643.HK) slid over 15%; China Overseas Land & Investment (00688.HK) fell about 9%; CHINA RES LAND (01109.HK) dropped 7.3%. Zhipu (02513.HK) jumped over 26% to a record high; MINIMAX-W (00100.HK) rose over 12%.